Mobile monolithic polymer elements for flow control in microfluidic devices
    1.
    发明申请
    Mobile monolithic polymer elements for flow control in microfluidic devices 审中-公开
    用于微流体装置中流动控制的移动单片聚合物元件

    公开(公告)号:US20050004250A1

    公开(公告)日:2005-01-06

    申请号:US10891528

    申请日:2004-07-14

    摘要: A cast-in-place and lithographically shaped mobile, monolithic polymer element for fluid flow control in microfluidic devices and method of manufacture. Microfluid flow control devices, or microvalves that provide for control of fluid or ionic current flow can be made incorporating a cast-in-place, mobile monolithic polymer element, disposed within a microchannel, and driven by either fluid or gas pressure against a retaining or sealing surface. The polymer elements are made by the application of lithographic methods to monomer mixtures formulated in such a way that the polymer will not bond to microchannel walls. The polymer elements can seal against pressures greater than 5000 psi, and have a response time on the order of milliseconds. By the use of energetic radiation it is possible to depolymerize selected regions of the polymer element to form shapes that cannot be produced by conventional lithographic patterning and would be impossible to machine.

    摘要翻译: 用于微流体装置中流体流动控制的现浇和光刻形移动式整体式聚合物元件及其制造方法。 提供控制流体或离子电流的微流量控制装置或微型阀可以包括设置在微通道内的现浇可移动整体式聚合物元件,并通过流体或气体压力驱动抵靠保持或 密封面。 通过将光刻方法应用于以聚合物不会结合到微通道壁的方式配制的单体混合物来制备聚合物元件。 聚合物元件可以密封大于5000psi的压力,并且具有大约毫秒级的响应时间。 通过使用高能辐射,可以解聚聚合物元件的选定区域以形成不能通过常规平版印刷图案产生的形状,并且不可能加工。

    Thermal modulation for gas chromatography
    5.
    发明申请
    Thermal modulation for gas chromatography 有权
    气相色谱的热调制

    公开(公告)号:US20050268693A1

    公开(公告)日:2005-12-08

    申请号:US11134873

    申请日:2005-05-23

    摘要: A thermal modulator device for gas chromatography and associated methods. The thermal modulator device includes a recirculating fluid cooling member, an electrically conductive capillary in direct thermal contact with the cooling member, and a power supply electrically coupled to the capillary and operable for controlled resistive heating of the capillary. The capillary can include more than one separate thermally modulated sections.

    摘要翻译: 用于气相色谱和相关方法的热调制装置。 热调制器装置包括循环流体冷却构件,与冷却构件直接热接触的导电毛细管,以及电耦合到毛细管并可操作以用于毛细管的受控电阻加热的电源。 毛细管可以包括多于一个单独的热调制部分。